I agree the 390's may be better for a dd. And the front diff. is a pain in the ass, not really that difficult it's just time consuming.
4sknrs (1 Viewer)
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- #22
Or hold a bit and see if you can't source a 3.90 rear for cheaper.
So you have 410 in back and 390 in front? Shame it's not the other way around because I have a front 390 sitting in my garage that could be yours for the price of 1 beer(and I drink the cheap stuff).
I think im gonna just do the 3.90's. I do find it hard to believe that noone on yotatech wants to trade me a 3.90 for my 4.10....i figured they would be all over that.
I doubt the fjc is the same as the 8"....Todd says its known as a weak point, that doesnt sound like an 8" even behind the 4.0. Though I cant imagine them using something smaller. If it is an 8" I bet its a taco/tundra/t100 8" which has a different bolt pattern and carrier girdles....but again...thats even stronger than the normal 8". Bottom line...search bitch!
I doubt the fjc is the same as the 8"....Todd says its known as a weak point, that doesnt sound like an 8" even behind the 4.0. Though I cant imagine them using something smaller. If it is an 8" I bet its a taco/tundra/t100 8" which has a different bolt pattern and carrier girdles....but again...thats even stronger than the normal 8". Bottom line...search bitch!
I know I had a bitch of a time finding a replacement front 390, I guess it figures it would be the same for the rear.
I take it a 3:90 from a LC would be a no go?
I only ask cuz that is what I have to offer at a super dooper friend of gappy discount...you know...a jack n coke.
I have the front and rear from my PO.
I only ask cuz that is what I have to offer at a super dooper friend of gappy discount...you know...a jack n coke.
I have the front and rear from my PO.
nah, LC's up til 97 were all 9.5's, except for the front hi-pinion 8" in the 80 series, and you cant use those in a rear axle.
alright then.....how bout just a jack n coke?
What the f'hell you got 2 different gear ratios for........why'd you do that?
I didnt the PO must have.
Only its 4.10 in the front, 3.90's in the back....which makes sense now...wish I knew that before I bought the 3.90 rear though.
Oh well.
I have a front 390 just sitting in the garage, ring and pinion look fine but it has busted spider gears. Rock bottom bargain discount price of 1 beer.
Yeah my tires all spin at the speed....what a difference. They are all spinning at 24.4% of the speed of the drive shaft. 
Now if I can only figure out why the truck sucks balls in the snow, then I can get some good use out the 4wd.
Now if I can only figure out why the truck sucks balls in the snow, then I can get some good use out the 4wd.
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- #34
See first post.
Rubbish. I could rally my 88 in almost any conditions.
tires?
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- #37
Perhaps your hooligan skills are weak unless there's garden gnomes involved.
97 has brand new stock yokohama's. The 88 had 33x12.5 pep boy's. (wider should hurt in this situation.)
ginger bread men.
Instead of changing the gearing on the truck, put bigger tires on the largest geared axle and smaller tires on the smaller geared axle.